Examlex
Which of the following statements about newspaper supplements is true?
Myelin Sheath
The fatty layer that surrounds and insulates nerve fibers in the central and peripheral nervous systems, facilitating the rapid transmission of nerve impulses.
Ion Pump
A protein complex in cell membranes that uses energy to move ions across the membrane, crucial for maintaining cellular ion balance.
Sodium
A chemical element (Na) that is essential for life, commonly found in salt (sodium chloride) and plays crucial roles in nerve function and fluid balance in the body.
Potassium
A chemical element and electrolyte essential for nerve function, muscle contraction, and maintaining fluid and electrolyte balance in the body.
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